What is the approval rate for the Boston Zoning Board of Appeal?

Across the full record of decided Boston ZBA cases, about 87.6% are approved and 12.4% denied. That high base rate means most applications succeed, so the real question for a developer or attorney is not 'will it pass?' but 'what makes a case fall into the 12.4% that don't?'

Approval odds vary meaningfully by ward, neighborhood, variance type, and whether the applicant is represented by counsel. Verdwise quantifies each of these so you can see where a specific project stands rather than relying on the citywide average.